7.Consumers don't have to / mustn't buy the product. After all, nobody forces them!
A: don't have to
B: mustn't buy
C: 无
D: 无
A: don't have to
B: mustn't buy
C: 无
D: 无
举一反三
- 3.They don't have to / mustn't use the same trademark as us. If they do, we'll sue. A: don't have to B: mustn't C: 无 D: 无
- If you don’t want to, you ______ to get there with us. A: mustn’t B: can’t C: don’t have D: have not
- —Must I finish all the homework this evening? A: mustn't B: don't have to C: can't
- We are not allowed to touch it. We ______ touch it. A: mustn't B: mustn't to C: haven't to D: don't have to
- You smoke in class. A: don't have to B: must C: have to D: mustn't